package com.duola.security.distributed.order.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.ClientDetailsService;
import org.springframework.security.oauth2.provider.client.JdbcClientDetailsService;
import org.springframework.security.oauth2.provider.code.AuthorizationCodeServices;
import org.springframework.security.oauth2.provider.code.InMemoryAuthorizationCodeServices;
import org.springframework.security.oauth2.provider.token.AuthorizationServerTokenServices;
import org.springframework.security.oauth2.provider.token.DefaultTokenServices;
import org.springframework.security.oauth2.provider.token.TokenEnhancerChain;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter;

import javax.sql.DataSource;
import java.util.Arrays;

/**
 * @author shkstart
 * @create 2022-01-02 0:37
 */
@Configuration
@EnableAuthorizationServer
public class AuthorizationServer extends AuthorizationServerConfigurerAdapter {
    @Autowired
    private TokenStore tokenStore;
    @Autowired
    private ClientDetailsService clientDetailsService;
    @Autowired
    private AuthorizationCodeServices authorizationCodeServices;
    @Autowired
    private AuthenticationManager authenticationManager;
    @Autowired
    private JwtAccessTokenConverter accessTokenConverter;
    @Autowired
    PasswordEncoder passwordEncoder;

    /*
      用来配置客户端详情服务
     */
    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
    /*客户端存储在内存    //clients.withClientDetails(clientDetailsService);
        clients.inMemory()// 使用in‐memory存储
                .withClient("c1")// client_id
                .secret(new BCryptPasswordEncoder().encode("secret"))//客户端秘钥
                .resourceIds("res1")//资源列表
                .authorizedGrantTypes("authorization_code", "password", "client_credentials", "implicit", "refresh_token")// 该client允许的授权类型 authorization_code,password,refresh_token,implicit,client_credentials
                .scopes("all")// 允许的授权范围
                .autoApprove(false) //加上验证回调地址
                .redirectUris("http://www.baidu.com")
                .and()
                .withClient("c2")// client_id
                .secret(new BCryptPasswordEncoder().encode("secret"))//客户端秘钥
                .resourceIds("res2")//资源列表
                .authorizedGrantTypes("authorization_code", "password", "client_credentials", "implicit", "refresh_token")// 该client允许的授权类型 authorization_code,password,refresh_token,implicit,client_credentials
                .scopes("all")// 允许的授权范围
                .autoApprove(false) //加上验证回调地址
                .redirectUris("https://www.taobao.com");*/
        //从客户端获取用户信息
        clients.withClientDetails(clientDetailsService);
    }


    @Bean
    public ClientDetailsService clientDetailsService(DataSource dataSource) {
        //定义客户端认证使用数据库 使用密码认证
        ClientDetailsService clientDetailsService = new JdbcClientDetailsService(dataSource);
        ((JdbcClientDetailsService) clientDetailsService).setPasswordEncoder(passwordEncoder);
        return clientDetailsService;
    }


    //定义令牌参数
    @Bean
    public AuthorizationServerTokenServices tokenService() {
        DefaultTokenServices service = new DefaultTokenServices();
        service.setClientDetailsService(clientDetailsService);//客户端详情服务
        service.setSupportRefreshToken(true);//支持刷新令牌
        service.setTokenStore(tokenStore);//令牌的存储策略
        //令牌增强
        TokenEnhancerChain tokenEnhancerChain = new TokenEnhancerChain();
        tokenEnhancerChain.setTokenEnhancers(Arrays.asList(accessTokenConverter));
        service.setTokenEnhancer(tokenEnhancerChain);

        service.setAccessTokenValiditySeconds(7200); // 令牌默认有效期2小时
        service.setRefreshTokenValiditySeconds(259200); // 刷新令牌默认有效期3天
        return service;
    }

    /*
    用来配置令牌（token）的访问端点和令牌服务(token services)。
   */
    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) {
        endpoints.authenticationManager(authenticationManager) //认证管理器
                .authorizationCodeServices(authorizationCodeServices)//授权码服务
                .tokenServices(tokenService())//令牌管理服务
                .allowedTokenEndpointRequestMethods(HttpMethod.POST);
    }

    /*
    用来配置令牌端点的安全约束
     */
    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) {
        security.tokenKeyAccess("permitAll()") //tokenkey这个endpoint当使用JwtToken且使用非对称加密时，资源服务用于获取公钥而开放的，这里指这个 endpoint完全公开。
                .checkTokenAccess("permitAll()")//checkToken这个endpoint完全公开
                .allowFormAuthenticationForClients();//允许进行表单认证
    }


    //设置授权码模式授权码如何存取,暂时采取内存方式
    @Bean
    public AuthorizationCodeServices authorizationCodeServices() {
        //设置授权码模式的授权码如何 存取，暂时采用内存方式
        return new InMemoryAuthorizationCodeServices();
    }
}
